Mercurial > snowl
annotate modules/feed.js @ 225:d11c788c254f
move files to top level instead of bogus extension subdirectory
| author | Myk Melez <myk@mozilla.org> |
|---|---|
| date | Mon, 04 Aug 2008 11:24:48 -0700 |
| parents | extension/modules/feed.js@ce534ed8a39e |
| children | b324ba5e93f0 |
| rev | line source |
|---|---|
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combine the SnowlFeed and SnowlFeedSubscriber objects, and make it inherit from SnowlSource; also, remove the obsolete SnowlFeedClient
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1 EXPORTED_SYMBOLS = ["SnowlFeed"]; |
| 14 | 2 |
| 3 const Cc = Components.classes; | |
| 4 const Ci = Components.interfaces; | |
| 5 const Cr = Components.results; | |
| 6 const Cu = Components.utils; | |
| 7 | |
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8 // modules that come with Firefox |
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9 Cu.import("resource://gre/modules/XPCOMUtils.jsm"); |
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use the updated timestamp if available, otherwise the published timestamp, and finally the dc:date, which the feed parser appears to always provide (if necessary, it gives the time downloaded)
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10 Cu.import("resource://gre/modules/ISO8601DateUtils.jsm"); |
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11 |
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12 // modules that should come with Firefox |
| 114 | 13 Cu.import("resource://snowl/modules/log4moz.js"); |
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14 Cu.import("resource://snowl/modules/Observers.js"); |
| 114 | 15 Cu.import("resource://snowl/modules/URI.js"); |
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16 |
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17 // Snowl-specific modules |
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18 Cu.import("resource://snowl/modules/datastore.js"); |
| 114 | 19 Cu.import("resource://snowl/modules/source.js"); |
| 164 | 20 Cu.import("resource://snowl/modules/identity.js"); |
| 114 | 21 |
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22 // FIXME: factor this out into a common file. |
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23 const PART_TYPE_CONTENT = 1; |
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24 const PART_TYPE_SUMMARY = 2; |
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25 |
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make mediaTypes a constant rather than a property of the SnowlFeed object
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26 // nsIFeedTextConstruct::type to media type mappings. |
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27 const mediaTypes = { html: "text/html", |
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28 xhtml: "application/xhtml+xml", |
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29 text: "text/plain" }; |
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30 |
| 118 | 31 /** |
| 32 * Convert a string to an array of character codes. | |
| 33 * | |
| 34 * @param string {string} the string to convert | |
| 35 * @returns {array} the array of character codes | |
| 36 */ | |
| 37 function stringToArray(string) { | |
| 38 var array = []; | |
| 39 for (let i = 0; i < string.length; i++) | |
| 40 array.push(string.charCodeAt(i)); | |
| 41 return array; | |
| 42 } | |
| 43 | |
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44 function SnowlFeed(aID, aName, aMachineURI, aHumanURI, aLastRefreshed, aImportance) { |
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45 // Call the superclass's constructor to initialize the new instance. |
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46 SnowlSource.call(this, aID, aName, aMachineURI, aHumanURI, aLastRefreshed, aImportance); |
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47 } |
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48 |
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49 SnowlFeed.prototype = { |
| 205 | 50 constructor: SnowlFeed, |
| 51 | |
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52 __proto__: SnowlSource.prototype, |
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53 |
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54 _log: Log4Moz.Service.getLogger("Snowl.Feed"), |
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55 |
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56 // If we prompt the user to authenticate, and the user asks us to remember |
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57 // their password, we store the nsIAuthInformation in this property until |
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58 // the request succeeds, at which point we store it with the login manager. |
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59 _authInfo: null, |
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60 |
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61 // Observer Service |
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62 get _obsSvc() { |
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63 let obsSvc = Cc["@mozilla.org/observer-service;1"]. |
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64 getService(Ci.nsIObserverService); |
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65 this.__defineGetter__("_obsSvc", function() { return obsSvc }); |
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66 return this._obsSvc; |
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67 }, |
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68 |
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69 // nsISupports |
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70 |
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71 QueryInterface: XPCOMUtils.generateQI([Ci.nsIAuthPrompt2]), |
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72 |
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73 // nsIInterfaceRequestor |
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74 |
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75 getInterface: function(iid) { |
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76 return this.QueryInterface(iid); |
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77 }, |
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78 |
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79 // nsIAuthPrompt2 |
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80 |
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81 _logins: null, |
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82 _loginIndex: 0, |
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83 |
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84 promptAuth: function(channel, level, authInfo) { |
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85 // Check saved logins before prompting the user. We get them |
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86 // from the login manager and try each in turn until one of them works |
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87 // or we run out of them. |
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88 if (!this._logins) { |
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89 let lm = Cc["@mozilla.org/login-manager;1"].getService(Ci.nsILoginManager); |
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90 // XXX Should we be using channel.URI.prePath in case the old URI |
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91 // redirects us to a new one at a different hostname? |
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92 this._logins = lm.findLogins({}, this.machineURI.prePath, null, authInfo.realm); |
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93 } |
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94 |
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95 let login = this._logins[this._loginIndex]; |
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96 if (login) { |
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97 authInfo.username = login.username; |
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98 authInfo.password = login.password; |
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99 ++this._loginIndex; |
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100 return true; |
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101 } |
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102 |
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103 // If we've made it this far, none of the saved logins worked, so we prompt |
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104 // the user to provide one. |
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105 let args = Cc["@mozilla.org/supports-array;1"].createInstance(Ci.nsISupportsArray); |
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106 args.AppendElement({ wrappedJSObject: this }); |
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107 args.AppendElement(authInfo); |
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108 |
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109 // |result| is how the dialog passes information back to us. It sets two |
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110 // properties on the object: |proceed|, which we return from this function, |
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111 // and which determines whether or not authentication can proceed using |
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112 // the values entered by the user; and |remember|, which determines whether |
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113 // or not we save the user's login with the login manager once the request |
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114 // succeeds. |
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115 let result = {}; |
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116 args.AppendElement({ wrappedJSObject: result }); |
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117 |
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118 let ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].getService(Ci.nsIWindowWatcher); |
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119 ww.openWindow(null, |
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120 // XXX Should we use commonDialog.xul? |
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121 "chrome://snowl/content/login.xul", |
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122 null, |
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123 "chrome,centerscreen,dialog,modal", |
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124 args); |
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125 |
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126 if (result.remember) |
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127 this._authInfo = authInfo; |
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128 |
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129 return result.proceed; |
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130 }, |
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131 |
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132 asyncPromptAuth: function() { |
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133 throw Cr.NS_ERROR_NOT_IMPLEMENTED; |
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134 }, |
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135 |
| 116 | 136 refresh: function() { |
| 14 | 137 let request = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"].createInstance(); |
| 138 | |
| 139 request.QueryInterface(Ci.nsIDOMEventTarget); | |
| 140 let t = this; | |
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141 request.addEventListener("load", function(e) { t.onRefreshLoad(e) }, false); |
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142 request.addEventListener("error", function(e) { t.onRefreshError(e) }, false); |
| 14 | 143 |
| 144 request.QueryInterface(Ci.nsIXMLHttpRequest); | |
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145 |
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146 // The feed processor is going to parse the XML, so override the MIME type |
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147 // in order to turn off parsing by XMLHttpRequest itself. |
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148 request.overrideMimeType("text/plain"); |
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149 |
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150 request.open("GET", this.machineURI.spec, true); |
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151 |
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152 // Register a listener for notification callbacks so we handle authentication. |
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153 request.channel.notificationCallbacks = this; |
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154 |
| 14 | 155 request.send(null); |
| 156 }, | |
| 157 | |
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158 onRefreshLoad: function(aEvent) { |
| 14 | 159 let request = aEvent.target; |
| 160 | |
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161 // If the request failed, let the error handler handle it. |
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162 // XXX Do we need this? Don't such failures call the error handler directly? |
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163 if (request.status < 200 || request.status > 299) { |
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164 this.onRefreshError(aEvent); |
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165 return; |
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166 } |
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167 |
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168 // XXX What's the right way to handle this? |
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169 if (request.responseText.length == 0) { |
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170 this.onRefreshError(aEvent); |
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171 return; |
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172 } |
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173 |
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174 // _authInfo only gets set if we prompted the user to authenticate |
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175 // and the user checked the "remember password" box. Since we're here, |
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176 // it means the request succeeded, so we save the login. |
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177 if (this._authInfo) |
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178 this._saveLogin(); |
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179 |
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180 let parser = Cc["@mozilla.org/feed-processor;1"]. |
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181 createInstance(Ci.nsIFeedProcessor); |
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182 parser.listener = { t: this, handleResult: function(r) { this.t.onRefreshResult(r) } }; |
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183 parser.parseFromString(request.responseText, request.channel.URI); |
| 14 | 184 }, |
| 185 | |
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186 onRefreshError: function(aEvent) { |
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187 let request = aEvent.target; |
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188 |
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189 // Sometimes an attempt to retrieve status text throws NS_ERROR_NOT_AVAILABLE |
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190 let statusText = ""; |
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191 try { |
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192 statusText = request.statusText; |
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193 } |
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194 catch(ex) {} |
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195 |
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196 this._log.error("onRefreshError: " + request.status + " (" + statusText + ")"); |
| 14 | 197 }, |
| 198 | |
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199 onRefreshResult: function(aResult) { |
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200 Observers.notify(this, "snowl:subscribe:get:start", null); |
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201 |
| 14 | 202 // Now that we know we successfully downloaded the feed and obtained |
| 203 // a result from it, update the "last refreshed" timestamp. | |
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204 this.lastRefreshed = new Date(); |
| 14 | 205 |
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206 let feed = aResult.doc.QueryInterface(Components.interfaces.nsIFeed); |
| 14 | 207 |
| 118 | 208 let currentMessageIDs = []; |
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209 let messagesChanged = false; |
| 14 | 210 |
| 211 SnowlDatastore.dbConnection.beginTransaction(); | |
| 212 try { | |
| 213 for (let i = 0; i < feed.items.length; i++) { | |
| 214 let entry = feed.items.queryElementAt(i, Ci.nsIFeedEntry); | |
| 215 //entry.QueryInterface(Ci.nsIFeedContainer); | |
| 216 | |
| 217 // Figure out the ID for the entry, then check if the entry has already | |
| 218 // been retrieved. If we can't figure out the entry's ID, then we skip | |
| 219 // the entry, since its ID is the only way for us to know whether or not | |
| 220 // it has already been retrieved. | |
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221 let externalID; |
| 14 | 222 try { |
| 118 | 223 externalID = entry.id || this._generateID(entry); |
| 14 | 224 } |
| 225 catch(ex) { | |
| 118 | 226 this._log.warn("couldn't retrieve a message: " + ex); |
| 14 | 227 continue; |
| 228 } | |
| 229 | |
| 118 | 230 let internalID = this._getInternalIDForExternalID(externalID); |
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231 if (internalID) { |
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232 currentMessageIDs.push(internalID); |
| 118 | 233 continue; |
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234 } |
| 14 | 235 |
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236 messagesChanged = true; |
| 118 | 237 this._log.info(this.name + " adding message " + externalID); |
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238 internalID = this._addMessage(feed, entry, externalID); |
| 118 | 239 currentMessageIDs.push(internalID); |
| 14 | 240 } |
| 241 | |
| 242 // Update the current flag. | |
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243 // XXX Should this affect whether or not messages have changed? |
| 14 | 244 SnowlDatastore.dbConnection.executeSimpleSQL("UPDATE messages SET current = 0 WHERE sourceID = " + this.id); |
| 118 | 245 SnowlDatastore.dbConnection.executeSimpleSQL("UPDATE messages SET current = 1 WHERE id IN (" + currentMessageIDs.join(", ") + ")"); |
| 14 | 246 |
| 247 SnowlDatastore.dbConnection.commitTransaction(); | |
| 248 } | |
| 249 catch(ex) { | |
| 250 SnowlDatastore.dbConnection.rollbackTransaction(); | |
| 251 throw ex; | |
| 252 } | |
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253 |
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254 if (messagesChanged) |
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255 this._obsSvc.notifyObservers(null, "messages:changed", null); |
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256 |
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257 Observers.notify(this, "snowl:subscribe:get:end", null); |
| 14 | 258 }, |
| 259 | |
| 260 /** | |
| 261 * Add a message to the datastore for the given feed entry. | |
| 262 * | |
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263 * @param aFeed {nsIFeed} the feed |
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264 * @param aEntry {nsIFeedEntry} the entry |
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265 * @param aExternalID {string} the external ID of the entry |
| 14 | 266 */ |
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267 _addMessage: function(aFeed, aEntry, aExternalID) { |
| 164 | 268 let authorID = null; |
| 269 let authors = (aEntry.authors.length > 0) ? aEntry.authors | |
| 270 : (aFeed.authors.length > 0) ? aFeed.authors | |
| 271 : null; | |
| 272 if (authors && authors.length > 0) { | |
| 273 let author = authors.queryElementAt(0, Ci.nsIFeedPerson); | |
| 274 // The external ID for an author is her email address, if provided | |
| 275 // (many feeds don't); otherwise it's her name. For the name, on the | |
| 276 // other hand, we use the name, if provided, but fall back to the | |
| 277 // email address if a name is not provided (which it probably was). | |
| 278 let externalID = author.email || author.name; | |
| 279 let name = author.name || author.email; | |
| 280 | |
| 281 // Get an existing identity or create a new one. Creating an identity | |
| 282 // automatically creates a person record with the provided name. | |
| 283 identity = SnowlIdentity.get(this.id, externalID) || | |
| 284 SnowlIdentity.create(this.id, externalID, name); | |
| 285 authorID = identity.personID; | |
| 14 | 286 } |
| 287 | |
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288 // Pick a timestamp, which is one of (by priority, high to low): |
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289 // 1. when the entry was last updated; |
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290 // 2. when the entry was published; |
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291 // 3. the Dublin Core timestamp associated with the entry; |
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292 // XXX Should we separately record when we added the entry so that the user |
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293 // can sort in the "order received" and view "when received" separately from |
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294 // "when published/updated"? |
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295 let timestamp = aEntry.updated ? new Date(aEntry.updated) : |
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296 aEntry.published ? new Date(aEntry.published) : |
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297 ISO8601DateUtils.parse(aEntry.get("dc:date")); |
| 14 | 298 |
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299 // FIXME: handle titles that contain markup or are missing. |
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300 let messageID = this.addSimpleMessage(this.id, aExternalID, |
| 164 | 301 aEntry.title.text, authorID, |
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302 timestamp, aEntry.link); |
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303 |
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304 // Add parts |
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305 if (aEntry.content) { |
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306 this.addPart(messageID, PART_TYPE_CONTENT, aEntry.content.text, |
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307 (aEntry.content.base ? aEntry.content.base.spec : null), |
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308 aEntry.content.lang, mediaTypes[aEntry.content.type]); |
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309 } |
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310 |
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311 if (aEntry.summary) { |
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312 this.addPart(messageID, PART_TYPE_SUMMARY, aEntry.summary.text, |
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313 (aEntry.summary.base ? aEntry.summary.base.spec : null), |
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314 aEntry.summary.lang, mediaTypes[aEntry.summary.type]); |
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315 } |
| 14 | 316 |
| 317 // Add metadata. | |
| 318 let fields = aEntry.QueryInterface(Ci.nsIFeedContainer). | |
| 319 fields.QueryInterface(Ci.nsIPropertyBag).enumerator; | |
| 320 while (fields.hasMoreElements()) { | |
| 321 let field = fields.getNext().QueryInterface(Ci.nsIProperty); | |
| 322 | |
| 164 | 323 // FIXME: create people records for these. |
| 14 | 324 if (field.name == "authors") { |
| 325 let values = field.value.QueryInterface(Ci.nsIArray).enumerate(); | |
| 326 while (values.hasMoreElements()) { | |
| 327 let value = values.getNext().QueryInterface(Ci.nsIFeedPerson); | |
| 328 // FIXME: store people records in a separate table with individual | |
| 329 // columns for each person attribute (i.e. name, email, url)? | |
| 118 | 330 this._addMetadatum(messageID, |
| 331 "atom:author", | |
| 332 value.name && value.email ? value.name + "<" + value.email + ">" | |
| 333 : value.name ? value.name : value.email); | |
| 14 | 334 } |
| 335 } | |
| 336 | |
| 337 else if (field.name == "links") { | |
| 338 let values = field.value.QueryInterface(Ci.nsIArray).enumerate(); | |
| 339 while (values.hasMoreElements()) { | |
| 340 let value = values.getNext().QueryInterface(Ci.nsIPropertyBag2); | |
| 341 // FIXME: store link records in a separate table with individual | |
| 342 // colums for each link attribute (i.e. href, type, rel, title)? | |
| 118 | 343 this._addMetadatum(messageID, |
| 344 "atom:link_" + value.get("rel"), | |
| 345 value.get("href")); | |
| 14 | 346 } |
| 347 } | |
| 348 | |
| 349 // For some reason, the values of certain simple fields (like RSS2 guid) | |
| 350 // are property bags containing the value instead of the value itself. | |
| 351 // For those, we need to unwrap the extra layer. This strange behavior | |
| 352 // has been filed as bug 427907. | |
| 353 else if (typeof field.value == "object") { | |
| 354 if (field.value instanceof Ci.nsIPropertyBag2) { | |
| 355 let value = field.value.QueryInterface(Ci.nsIPropertyBag2).get(field.name); | |
| 118 | 356 this._addMetadatum(messageID, field.name, value); |
| 14 | 357 } |
| 358 else if (field.value instanceof Ci.nsIArray) { | |
| 359 let values = field.value.QueryInterface(Ci.nsIArray).enumerate(); | |
| 360 while (values.hasMoreElements()) { | |
| 164 | 361 // FIXME: values might not always have this interface. |
| 14 | 362 let value = values.getNext().QueryInterface(Ci.nsIPropertyBag2); |
| 118 | 363 this._addMetadatum(messageID, field.name, value.get(field.name)); |
| 14 | 364 } |
| 365 } | |
| 366 } | |
| 367 | |
| 368 else | |
| 118 | 369 this._addMetadatum(messageID, field.name, field.value); |
| 14 | 370 } |
| 371 | |
| 372 return messageID; | |
| 373 }, | |
| 374 | |
| 375 /** | |
| 376 * Given an entry, generate an ID for it based on a hash of its link, | |
| 377 * published, and title attributes. Useful for uniquely identifying entries | |
| 378 * that don't provide their own IDs. | |
| 379 * | |
| 380 * @param entry {nsIFeedEntry} the entry for which to generate an ID | |
| 381 * @returns {string} an ID for the entry | |
| 382 */ | |
| 118 | 383 _generateID: function(entry) { |
| 14 | 384 let hasher = Cc["@mozilla.org/security/hash;1"]. |
| 385 createInstance(Ci.nsICryptoHash); | |
| 386 hasher.init(Ci.nsICryptoHash.SHA1); | |
| 118 | 387 let identity = stringToArray(entry.link.spec + entry.published + entry.title.text); |
| 14 | 388 hasher.update(identity, identity.length); |
| 389 return "urn:" + hasher.finish(true); | |
| 390 }, | |
| 391 | |
| 392 // FIXME: Make the rest of this stuff be part of a superclass from which | |
| 393 // this class is derived. | |
| 394 | |
| 395 /** | |
| 396 * Get the internal ID of the message with the given external ID. | |
| 397 * | |
| 398 * @param aExternalID {string} | |
| 399 * the external ID of the message | |
| 400 * | |
| 401 * @returns {number} | |
| 402 * the internal ID of the message, or undefined if the message | |
| 403 * doesn't exist | |
| 404 */ | |
| 118 | 405 _getInternalIDForExternalID: function(aExternalID) { |
| 14 | 406 return SnowlDatastore.selectInternalIDForExternalID(aExternalID); |
| 407 }, | |
| 408 | |
| 409 /** | |
| 410 * Add a message with a single part to the datastore. | |
| 411 * | |
| 412 * @param aSourceID {integer} the record ID of the message source | |
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413 * @param aExternalID {string} the external ID of the message |
| 14 | 414 * @param aSubject {string} the title of the message |
| 164 | 415 * @param aAuthorID {string} the author of the message |
| 14 | 416 * @param aTimestamp {Date} the date/time at which the message was sent |
| 417 * @param aLink {nsIURI} a link to the content of the message, | |
| 418 * if the content is hosted on a server | |
| 419 * | |
| 420 * @returns {integer} the internal ID of the newly-created message | |
| 421 */ | |
| 164 | 422 addSimpleMessage: function(aSourceID, aExternalID, aSubject, aAuthorID, |
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423 aTimestamp, aLink) { |
| 14 | 424 // Convert the timestamp to milliseconds-since-epoch, which is how we store |
| 425 // it in the datastore. | |
| 426 let timestamp = aTimestamp ? aTimestamp.getTime() : null; | |
| 427 | |
| 428 // Convert the link to its string spec, which is how we store it | |
| 429 // in the datastore. | |
| 430 let link = aLink ? aLink.spec : null; | |
| 431 | |
| 432 let messageID = | |
| 164 | 433 SnowlDatastore.insertMessage(aSourceID, aExternalID, aSubject, aAuthorID, |
| 14 | 434 timestamp, link); |
| 435 | |
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436 return messageID; |
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437 }, |
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438 |
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439 get _addPartStatement() { |
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440 let statement = SnowlDatastore.createStatement( |
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441 "INSERT INTO parts(messageID, partType, content, baseURI, languageCode, mediaType) \ |
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442 VALUES (:messageID, :partType, :content, :baseURI, :languageCode, :mediaType)" |
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443 ); |
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444 this.__defineGetter__("_addPartStatement", function() { return statement }); |
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445 return this._addPartStatement; |
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446 }, |
| 14 | 447 |
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448 addPart: function(aMessageID, aPartType, aContent, aBaseURI, aLanguageCode, |
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449 aMediaType) { |
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450 this._addPartStatement.params.messageID = aMessageID; |
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451 this._addPartStatement.params.partType = aPartType; |
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452 this._addPartStatement.params.content = aContent; |
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453 this._addPartStatement.params.baseURI = aBaseURI; |
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454 this._addPartStatement.params.languageCode = aLanguageCode; |
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455 this._addPartStatement.params.mediaType = aMediaType; |
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456 this._addPartStatement.execute(); |
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457 |
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458 return SnowlDatastore.dbConnection.lastInsertRowID; |
| 14 | 459 }, |
| 460 | |
| 118 | 461 _addMetadatum: function(aMessageID, aAttributeName, aValue) { |
| 14 | 462 // FIXME: speed this up by caching the list of known attributes. |
| 463 let attributeID = SnowlDatastore.selectAttributeID(aAttributeName) | |
| 464 || SnowlDatastore.insertAttribute(aAttributeName); | |
| 465 SnowlDatastore.insertMetadatum(aMessageID, attributeID, aValue); | |
| 466 }, | |
| 467 | |
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468 subscribe: function(callback) { |
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469 Observers.notify(this, "snowl:subscribe:connect:start", null); |
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470 |
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471 this._subscribeCallback = callback; |
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472 |
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473 this._log.info("subscribing to " + this.name + " <" + this.machineURI.spec + ">"); |
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474 |
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475 let request = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"].createInstance(); |
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476 |
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477 request = request.QueryInterface(Ci.nsIDOMEventTarget); |
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478 |
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479 let t = this; |
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480 request.addEventListener("load", function(e) { t.onSubscribeLoad(e) }, false); |
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481 request.addEventListener("error", function(e) { t.onSubscribeError(e) }, false); |
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482 |
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483 request = request.QueryInterface(Ci.nsIXMLHttpRequest); |
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484 |
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485 // The feed processor is going to parse the XML, so override the MIME type |
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486 // in order to turn off parsing by XMLHttpRequest itself. |
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487 request.overrideMimeType("text/plain"); |
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488 |
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489 request.open("GET", this.machineURI.spec, true); |
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490 |
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491 // Register a listener for notification callbacks so we handle authentication. |
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492 request.channel.notificationCallbacks = this; |
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493 |
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494 request.send(null); |
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495 }, |
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496 |
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497 onSubscribeLoad: function(aEvent) { |
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498 let request = aEvent.target; |
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499 |
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500 // If the request failed, let the error handler handle it. |
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501 // XXX Do we need this? Don't such failures call the error handler directly? |
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502 if (request.status < 200 || request.status > 299) { |
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503 this.onSubscribeError(aEvent); |
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504 return; |
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505 } |
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506 |
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507 // XXX What's the right way to handle this? |
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508 if (request.responseText.length == 0) { |
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509 this.onRefreshError(aEvent); |
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510 return; |
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511 } |
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512 |
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513 Observers.notify(this, "snowl:subscribe:connect:end", request.status); |
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514 |
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515 // _authInfo only gets set if we prompted the user to authenticate |
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516 // and the user checked the "remember password" box. Since we're here, |
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517 // it means the request succeeded, so we save the login. |
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518 if (this._authInfo) |
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519 this._saveLogin(); |
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520 |
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521 let parser = Cc["@mozilla.org/feed-processor;1"]. |
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522 createInstance(Ci.nsIFeedProcessor); |
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523 parser.listener = { t: this, handleResult: function(r) { this.t.onSubscribeResult(r) } }; |
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524 parser.parseFromString(request.responseText, request.channel.URI); |
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525 }, |
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526 |
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527 onSubscribeError: function(aEvent) { |
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528 let request = aEvent.target; |
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529 this._log.error("onSubscribeError: " + request.status + " (" + request.statusText + ")"); |
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530 Observers.notify(this, "snowl:subscribe:connect:end", request.status); |
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531 if (this._subscribeCallback) |
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532 this._subscribeCallback(); |
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533 }, |
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534 |
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535 onSubscribeResult: function(aResult) { |
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536 try { |
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537 let feed = aResult.doc.QueryInterface(Components.interfaces.nsIFeed); |
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538 |
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539 // Extract the name (if we don't already have one) and human URI from the feed. |
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540 if (!this.name) |
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541 this.name = feed.title.plainText(); |
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542 this.humanURI = feed.link; |
| 205 | 543 |
| 544 this.persist(); | |
| 545 | |
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546 // Let observers know about the new source. |
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547 this._obsSvc.notifyObservers(null, "sources:changed", null); |
| 205 | 548 |
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549 // Refresh the feed to import all its items. |
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550 this.onRefreshResult(aResult); |
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551 } |
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552 catch(ex) { |
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553 dump("error on subscribe result: " + ex + "\n"); |
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554 } |
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555 finally { |
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556 if (this._subscribeCallback) |
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557 this._subscribeCallback(); |
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558 } |
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559 }, |
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560 |
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561 _saveLogin: function() { |
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562 let lm = Cc["@mozilla.org/login-manager;1"].getService(Ci.nsILoginManager); |
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563 |
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564 // Create a new login with the auth information we obtained from the user. |
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565 let LoginInfo = new Components.Constructor("@mozilla.org/login-manager/loginInfo;1", |
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566 Ci.nsILoginInfo, |
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567 "init"); |
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568 // XXX Should we be using channel.URI.prePath in case the old URI |
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569 // redirects us to a new one at a different hostname? |
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570 let newLogin = new LoginInfo(this.machineURI.prePath, |
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571 null, |
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572 this._authInfo.realm, |
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573 this._authInfo.username, |
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574 this._authInfo.password, |
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575 "", |
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576 ""); |
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577 |
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578 // Get existing logins that have the same hostname and realm. |
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579 let logins = lm.findLogins({}, this.machineURI.prePath, null, this._authInfo.realm); |
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580 |
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581 // Try to figure out if we should replace one of the existing logins. |
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582 // If there's only one existing login, we replace it. Otherwise, if |
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583 // there's a login with the same username, we replace that. Otherwise, |
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584 // we add the new login instead of replacing an existing one. |
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585 let oldLogin; |
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586 if (logins.length == 1) |
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587 oldLogin = logins[0]; |
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588 else if (logins.length > 1) |
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589 oldLogin = logins.filter(function(v) v.username == this._authInfo.username)[0]; |
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590 |
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591 if (oldLogin) |
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592 lm.modifyLogin(oldLogin, newLogin); |
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593 else |
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594 lm.addLogin(newLogin); |
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595 |
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8763c90ce556
better support for feeds that require authentication; we now display a custom authentication dialog that hopefully makes more sense when it appears out of the blue; we also use it when subscribing the user to the feed, and it includes UI for the user to request that their credentials be remembered; finally, we use remembered credentials automatically across sessions instead of prompting at least once per session
Myk Melez <myk@mozilla.org>
parents:
138
diff
changeset
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596 // Now that we've saved the login, we don't need the auth info anymore. |
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8763c90ce556
better support for feeds that require authentication; we now display a custom authentication dialog that hopefully makes more sense when it appears out of the blue; we also use it when subscribing the user to the feed, and it includes UI for the user to request that their credentials be remembered; finally, we use remembered credentials automatically across sessions instead of prompting at least once per session
Myk Melez <myk@mozilla.org>
parents:
138
diff
changeset
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597 this._authInfo = null; |
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76
1cbd4c5a511b
link the source name to the human URI if available; add a new SnowlFeedSubscriber object that can handle subscribing to feeds from various interfaces and which sets the human URI if available; make the OPML importer use the new SnowlFeedSubscriber object
Myk Melez <myk@mozilla.org>
parents:
75
diff
changeset
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598 } |
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1cbd4c5a511b
link the source name to the human URI if available; add a new SnowlFeedSubscriber object that can handle subscribing to feeds from various interfaces and which sets the human URI if available; make the OPML importer use the new SnowlFeedSubscriber object
Myk Melez <myk@mozilla.org>
parents:
75
diff
changeset
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599 |
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1cbd4c5a511b
link the source name to the human URI if available; add a new SnowlFeedSubscriber object that can handle subscribing to feeds from various interfaces and which sets the human URI if available; make the OPML importer use the new SnowlFeedSubscriber object
Myk Melez <myk@mozilla.org>
parents:
75
diff
changeset
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600 }; |